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How can we implement an editable JLabel in Java?
JLabel
- A JLabel class can extend JComponent class and an object of JLabel provides text instructions or information on a GUI.
- A JLabel can display a single line of read-only text, an image or both text and image.
- The important methods of a JLabel are setText(), setIcon(), setBackground(), setOpaque(), setHorizontalAlignment(), setVerticalAlignment() and etc.
- A JLabel can explicitly generate a PropertyChangeListener interface.
Example
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.*;
public class JEditableLabel extends JFrame {
public JEditableLabel() {
setTitle("JEditableLabel");
setLayout(new FlowLayout());
final JLabel label = new JLabel(" Welcome to Tutorials Point");
final JTextField textfield = new JTextField();
final CardLayout cl = new CardLayout();
final JPanel panel = new JPanel(cl);
panel.add(label, "label component");
panel.add(textfield, "textfield component");
add(panel);
label.addMouseListener(new MouseAdapter() {
public final void mouseEntered(MouseEvent evt) {
textfield.setText(label.getText());
cl.show(panel, "textfield component");
}
});
textfield.addMouseListener(new MouseAdapter() {
public final void mouseExited(MouseEvent evt) {
label.setText(textfield.getText());
cl.show(panel, "label component");
}
});
setSize(375, 250);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setVisible(true);
}
public static void main(String[] args) {
new JEditableLabel();
}
}Output
Updated on: 10-Feb-2020
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